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Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') in org.xwiki.platform:xwiki-platform-attachment-ui

Critical
tmortagne published GHSA-3hjg-cghv-22ww Apr 18, 2023

Package

maven org.xwiki.platform:xwiki-platform-attachment-ui (Maven)

Affected versions

> 3.0-rc-1

Patched versions

15.0-rc-1, 14.10.2, 14.4.8, 13.10.11,

Description

Impact

A registered user can perform remote code execution leading to privilege escalation by injecting the proper code in the "property" field of an attachment selector, as a gadget of their own dashboard.
Note that the vulnerability does not impact comments of a wiki.

Patches

The vulnerability has been patched in XWiki 13.10.11, 14.4.8, 14.10.2, 15.0-rc-1.

Workarounds

The problem can be worked around by applying following changes directly in XWiki.AttachmentSelector page: 5e8725b.

References

For more information

If you have any questions or comments about this advisory:

Attribution

This vulnerability has been reported by René de Sain @renniepak.

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVE ID

CVE-2023-29519

Weaknesses

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. eval). Learn more on MITRE.